Railway-switch stand



Patented Mar. 20, 1923.

UNTTED STATES P l QFFHQE.

BENEDICT T. GIBBS, JR., 033 CHICAGO HEZGHTS, ILLINOIS, ASSIG-NOB TO MORDEN FROG & CROSSING WORKS, OF CHICAGO, ILLINOIS, .A CORPORATION OF ILLINOIS.

RAILWAY-SRWITOH STAND.

Application filed December 15, 1922. Serial No. 807,033.

To all to 7101221 it may concern.

Be it known that I, BENEDICT T. Glens, Jr., a citizen of the United States, residing at Chicago Heights. in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Railway-Switch Stands, of which the following is a specification.

This invention relates to railway switch stands, specifically those of the type conventionally installed across two ties at the side of a switch to operate the switch point.

For a variety oi: reasons, well understood in the art, unnecessary to enumerate here, it is desirable in such a stand to provide a certain amountofintentional lost motion, as distinguished from objectionable looseness 'l'onnd in improperly built or seriously deteriorated mechanisms.

The object of this invention is to provide a conventional form of switch stand with such an intentional lost motion device, which is so located that it is easily built and readily accessible, when the stand is in use, for adjustment and for repair or replacement of parts.

The invention consists in mechanism for attaining the foregoing and other objects and in many features and details of construction which will be hereafter more fully set forth in the specification and claims.

Referringto the drawings in which like numerals designate the same parts throughout the several views:

Figure 1 is a sectional plan view taken just below the top of the cover 12 of Figure 2, illustrating this invention in its preferred form.

Figure 2 is a side elevation, largely in sec tion, taken on the line 22 of Figure 1.

Figure 3 is a perspective view of the essential detail parts entering into this invention, removed from. the switch Stand proper.

The switch stand case of conventional form to which this invention is applied, including a base portion 10 and a cover 12, secured in place by any suitable means, as for instance, bolts 14:, is shown applied to two railroad ties 16 and 18 by any suitable means, as, for instance, spikes 20, in such a position that the conventional switch rod 22, operated by the device, can extend away between the ties to the switch point, not shown, to be controlled.

Journaled in the switch stand case in the obvious manner is a shaft 2 1, conventional as to ally except in its portion immediately below cover 12 where segmental gear 26 is attached to the shaft. Gear 26 meshes with another near 28 conventionally mounted on V a horizontal shaft 30, extending outside the case, and there carrying the usual operating lever 32 equipped atits end with the customary weight 34, adapted to be rocked in a vertical plane between the position shown in Figure 1 and a corresponding position 180 therefrom, in which lever 32 rests upon member 36 ontie 16, as distinguished from member 38 on tie 18. The upper end of shaft 2 1- may, if desired, be provided with the target or lantern holding non-circular end 40.

The lower end of shaft 24 carries the usual double crank 42, one of whose arms is shown attached by bolt 4A to switch rod 22. Segment 26 is not rigidly or directly connected to shaft 24 but is hollowed out to form the recess 46 to receive arm 18 on whose hub 50 the segment is journalled. Hub 52 is detachably, nori-rotatably con-' nectcd to the non-circular portion 54 of shaft in obvious manner. 1

The widm of arm 4,8 is substantially narrower than recess 46 so theseg'ment can rock' a substantial angular distance, the hub 50 being detachably positioned at any intermediate position by properly adjusting set screws 56 and 58 of obvious construction.

The ability to thus position. the segment with reference to arm 48 provides the desired intentional. lost motion; and it is adjustable as described. The device is protected by the case but is readily accessible on removing, in the particular case illus trated, the entire cover 12 which can be readily accomplished by removing bolt 60 and collar 62 from shaft 24%. Arm 428 can be readily replaced. should wear or injury appear.

By wholly enclosing the member LS-50 within the external lines or cubical contents of the gear 26, as shown in Fig. 2, the height of the entire stand is reduced, an ad vantage well understood in the art.

liiavinnthus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In mechanism of the class described, in combination with ashaft and gear member loosely enclosing it, a separable member non-rotatable on the shaft forming circumferentially a bearing for the gear member, and adjustable means angularly positioning the gear with reference to the intermediate member.

2. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, a separable member non-rotatable on the shaft having a circumferential surface forming a bearing for the gear member, an arm on the separable member, and adjustable means carried by the gear engaging said arm, angularly positioning the gear with reference to the intermediate member.

3. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, the body of the gear being recessed to receive an arm; a separable member non-rotatable on the shaft having a circumferential surface forming a bearing for the gear member, an arm on the separable member narrower than and lying in said recess in the gear, and adjustable means carried by the gear engaging said arm, angularly positioning the gear with reference to the intermediate member.

4. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, a separable member non-rotatable on the shaft forming circumferentially a bearing for the gear member,

an arm on the separable member, and adjust able means carried by the gear engaging opposite sides of said arm, angularly positioning the gear with reference to the intermediate member.

5. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, the body of the gear being recessed to receive an arm, a separable-member non-rotatable on the shaft forming a bearing for the gear member, an arm on the separable member narrower than and lying in said recess in the gear, said separable member and its arm being completely enclosed in the recess in the gear and adjustable means carried by the gear engaging opposite sides of said arm, angularly positioning the gear with reference to the intermediate member.

6. In mechanism of the class described, in combination with a shaft-and gear member loosely enclosing it, a separable member non-rotatable on the shaft enclosed in the gear forming a bearing forthe gear member, and adjustable means angularly positioning the gear with reference to the intermediate member.

7. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, a separable member non-rotatable on the shaft enclosed in the gear forming abearing for the gearmember, an arm on the separable member, and adjustable means'carried by the gear engaging said arm, angularly positioning the gear with reference to the intermediate member.

8. In mechanism of the class described, in combination with a shaft and gear member loosely enclosing it, the'body of the gear being recessed to receive an arm; a separable member non-rotatable on the shaft completely enclosed within the ear forming a bearing for the gear member, an arm on the separable member narrower than and lying in said recess in the gear, and adjustable means carried by the gear engaging said arm, angularly positioning the gear with reference to the intermediate member.

In witness whereof, I have hereunto subscribed my name.

BENEDICT T. GIBBS, JR. 

